@misc{indiciae7078ec2c2228,
  title = {Modulation/demodulation techniques for satellite communications. Part 1: Background},
  author = {Omura, J. K. and Simon, M. K.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820005428},
  note = {Source identifier: 19820005428}
}